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Mirrors > Home > MPE Home > Th. List > nd2 | Structured version Visualization version Unicode version |
Description: A lemma for proving conditionless ZFC axioms. (Contributed by NM, 1-Jan-2002.) |
Ref | Expression |
---|---|
nd2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elirrv 8504 | . . 3 | |
2 | stdpc4 2353 | . . . 4 | |
3 | 1 | nfnth 1728 | . . . . 5 |
4 | elequ2 2004 | . . . . 5 | |
5 | 3, 4 | sbie 2408 | . . . 4 |
6 | 2, 5 | sylib 208 | . . 3 |
7 | 1, 6 | mto 188 | . 2 |
8 | axc11 2314 | . 2 | |
9 | 7, 8 | mtoi 190 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wal 1481 wsb 1880 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 ax-reg 8497 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-v 3202 df-dif 3577 df-un 3579 df-nul 3916 df-sn 4178 df-pr 4180 |
This theorem is referenced by: axrepnd 9416 axpownd 9423 axinfndlem1 9427 axacndlem4 9432 |
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